---

yaml --- r: 74888 b: refs/heads/master c: ea33291 h: refs/heads/master v: v3
git-mirror · Dec 16, 2007 · 37b9e7c · 37b9e7c
1 parent 97bff96
commit 37b9e7c
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Showing 2 changed files with 7 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2638698df30b7b57a8dad7029a0c89fe6c4f6783
+refs/heads/master: ea332912b8a2e0b2f51ac3b6c197b71d3a18cbb7
diff --git a/trunk/drivers/net/irda/stir4200.c b/trunk/drivers/net/irda/stir4200.c
@@ -142,9 +142,6 @@ enum StirCtrl2Mask {
 };
 
 enum StirFifoCtlMask {
-	FIFOCTL_EOF = 0x80,
-	FIFOCTL_UNDER = 0x40,
-	FIFOCTL_OVER = 0x20,
 	FIFOCTL_DIR = 0x10,
 	FIFOCTL_CLR = 0x08,
 	FIFOCTL_EMPTY = 0x04,
@@ -594,9 +591,10 @@ static int fifo_txwait(struct stir_cb *stir, int space)
 {
 	int err;
 	unsigned long count, status;
+	unsigned long prev_count = 0x1fff;
 
 	/* Read FIFO status and count */
-	for(;;) {
+	for (;; prev_count = count) {
 		err = read_reg(stir, REG_FIFOCTL, stir->fifo_status, 
 				   FIFO_REGS_SIZE);
 		if (unlikely(err != FIFO_REGS_SIZE)) {
@@ -629,6 +627,10 @@ static int fifo_txwait(struct stir_cb *stir, int space)
 		if (space >= 0 && STIR_FIFO_SIZE - 4 > space + count)
 			return 0;
 
+		/* queue confused */
+		if (prev_count < count)
+			break;
+
 		/* estimate transfer time for remaining chars */
 		msleep((count * 8000) / stir->speed);
 	}